RP-350.1D RP-800.1D RP-1500.1D RP-2000.1D RP-3500.1D RP-4500.1D RP-75.4AB RP-150.4AB RP-600.5 INTRODUCTION Congratulations and thank you for purchasing Skar Audio amplifiers, the logical choice in mobile audio amplification. Your amplifiers have been designed and engineered with the highest quality components and top of the line workmanship to help you reach the superior sound you are after. To achieve optimal performance of your system, please take a few moments to read over this Owner’s manual or visit authorized dealer if needed before starting your installation. DIGITAL MONOBLOCK FEATURES STABLE INTO 1 OHM LOAD HIGH SPEED MOSFET POWER SUPPLY 24dB/OCT, VARIABLE CROSSOVER VARIABLE LOW PASS FILTER VARIABLE SUBSONIC FILTER 6dB / 12dB SELECTABLE BASS BOOST REMOTE CONTROL COMPACT DESIGN DIGITAL MONOBLOCK SPECIFICATIONS Rated power output - RMS power @ 4 ohm - RMS power @ 2 ohm - RMS power @ 1 ohm Working impedance Input Sensitivity Low Pass Filter Subsonic Filter Bass Boost Frequency Response Signal to Noise Ratio Efficiency @ 4ohm THD @ 4ohm Damping Factor Fuse Rating Dimensions ( L inches ) 6.30 W x 2.20 H inches RP-350.1D 150Watts x 1 250Watts x 1 350Watts x 1 1 ohm stable 6V ~ 0.2V 50Hz ~ 220Hz Off ~ 50Hz 6dB / 12dB 20 ~ 250Hz 85 < Over 90% < 0.1% 150 < 30A 6.23 inches RP-800.1D 370Watts x 1 600Watts x 1 800Watts x 1 1 ohm stable 6V ~ 0.2V 50Hz ~ 220Hz Off ~ 50Hz 6dB / 12dB 20 ~ 250Hz 85 < Over 90% < 0.1% 150 < 80A 10.13 inches RP-1500.1D 550Watts x 1 930Watts x 1 1500Watts x 1 1 ohm stable 6V ~ 0.2V 50Hz ~ 220Hz Off ~ 50Hz 6dB / 12dB 20 ~ 250Hz 85 < Over 90% < 0.1% 150 < 120A 13.267 inches All features are subject to change in the continuing effort to improve the products without notice. RP-2000.1D 800Watts x 1 1400Watts x 1 2000Watts x 1 1 ohm stable 6V ~ 0.2V 50Hz ~ 220Hz Off ~ 50Hz 6dB / 12dB 20 ~ 250Hz 85 < Over 90% < 0.1% 150 < 200A 17.71 inches DIGITAL MONOBLOCK FEATURES STABLE INTO 1 OHM LOAD HIGH SPEED MOSFET POWER SUPPLY 24dB/OCT, VARIABLE SUBSONIC FILTER 24dB/OCT, LOW PASS FILTER VARIABLE BASS EQ VARIABLE PHASE CONTROL REMOTE CONTROL STRAPPED CONNECTION TO 2 OHM HIGH PURITY AND THICKNESS PRINTED CIRCUIT BOARDS ( RP-3500.1D : 2oz, RP-4500.1D : 3oz ) DIGITAL MONOBLOCK SPECIFICATIONS Rated power output - RMS power @ 4 ohm - RMS power @ 2 ohm - RMS power @ 1 ohm - RMS Strapped power @ 2 ohm Working impedance Input Sensitivity Low Pass Filter Subsonic Filter Bass EQ Phase Control Remote Control Strapped Connection Frequency Response Signal to Noise Ratio Efficiency @ 4ohm THD @ 4ohm Damping Factor Fuse Rating Strapped Fuse Rating Dimensions ( L inches ) 8.27 W x 2.44 H inches RP-3500.1D 1200Watts x 1 2300Watts x 1 3500Watts x 1 7000Watts x 1 1 ohm stable 6V ~ 0.2V 35Hz ~ 250Hz 10Hz ~ 50Hz 0dB ~ 9dB 0 ~ 180 Degree Included Included 20 ~ 250Hz 85 < Over 90% < 0.1% 200 < 350A 700A 18.90 inches RP-4500.1D 1600Watts x 1 2900Watts x 1 4500Watts x 1 9000Watts x 1 1 ohm stable 6V ~ 0.2V 35Hz ~ 250Hz 10Hz ~ 50Hz 0dB ~ 9dB 0 ~ 180 Degree Included Included 20 ~ 250Hz 85 < Over 90% < 0.1% 200 < 450A 900A 22.05 inches All features are subject to change in the continuing effort to improve the products without notice. MULTI-CHANNEL FEATURES 4 CHANNEL AMPLIFIER STABLE INTO 2 OHM STEREO OR 4 OHM MONO HIGH SPEED MOSFET POWER SUPPLY 12dB/OCT, HIGH PASS FILTER 12dB/OCT, LOW PASS FILTER 6dB / 12dB SELECTABLE BASS BOOST BAND-PASS CAPABLE SURFACE MOUNT TECHNOLOGY DOUBLE SIDED PRINTED CIRCUIT BOARD 5 CHANNEL AMPLIFIER CH1 ~ CH4 STABLE INTO 2 OHM STEREO CH5 STABLE INTO 1 OHM 12dB/OCT, HIGH PASS FILTER FOR CH1 ~ CH4 24DB/OCT, LOW PASS FILTER FOR CH5 24DB/OCT, SUBSONIC FILTER FOR CH5 VARIABLE BASS BOOST SURFACE MOUNT TECHNOLOGY DOUBLE SIDED PRINTED CIRCUIT BOARD MULTI-CHANNEL SPECIFICATIONS Rated power output - RMS power @ 4 ohm - RMS power @ 2 ohm - RMS power @ 1 ohm - RMS power @ 4 ohm mono Working impedance Input Sensitivity High Pass Filter Low Pass Filter Subsonic Filter Bass Boost Frequency Response RP-75.4AB 75Watts x 4 115Watts x 4 na 250Watts x 2 2 ohm stable 6V ~ 0.2V 20Hz ~ 5KHz 50Hz ~ 500Hz na 6dB / 12dB 20Hz ~ 20KHz RP-150.4AB 150Watts x 4 250Watts x 4 na 500Watts x 2 2 ohm stable 6V ~ 0.2V 20Hz ~ 5KHz 50Hz ~ 500Hz na 6dB / 12dB 20Hz ~ 20KHz Signal to Noise Ratio Efficiency @ 4ohm 105 < Over 65% 105 < Over 65% THD @ 4ohm Damping Factor Fuse Rating Dimensions ( L inches ) 6.30 W x 2.20 H inches < 0.1% 150 < 60A 13.78 inches < 0.1% 150 < 120A 17.72 inches RP-600.5 60Watts x 4 + 170Watts x 1 90Watts x 4 + 270Watts x 1 370Watts x 1 180Watts x 2 2 ohm for CH1/4, 1 ohm for CH5 6V ~ 0.2V 20Hz ~ 5KHz - CH1/2 & CH3/4 50Hz ~ 250Hz for CH5 10Hz ~ 50Hz for CH5 0 ~ 12dB for CH5 20Hz ~ 20KHz for CH1/4, 20 ~ 250Hz for CH5 105 < for CH1/4, 85 < for CH5 Over 65% for CH1/4, Over 90% for CH5 < 0.1% 150 < 80A 16.93 inches All features are subject to change in the continuing effort to improve the products without notice. POWER CONNECTION HEADUNIT GROUND BATTERY Fuse rate BATT ( 12V POWER ) Before mounting amplifiers, disconnect the negative cable from the battery to protect any accidental damage to your amplifiers and audio system. RP-2000.1D, RP-3500.1D & RP-4500.1D are designed to use o ga power and ground connection Rest of RP amplifiers are designed to use 4 gauge power and ground connection. Connect the power cables to power terminal 12V. All RP-series amplifiers are not equipped with fuses so that external fuses should be used. Connect one end of fuse holder to the power cable going into the amplifiers and the other end of fuse holder to positive battery. This fuse location will protect the system and the vehicle against the possibility of a short circuit in the power cable. Be sure to use fuses and fuse holder adequate for the application. GND ( GROUND ) Locate a secure grounding connection as close to amplifier as possible. Make sure the location is clean and provides a direct electrical connection to the frame of the vehicle. The ground needs to have as low of a resistance as possible. Connect one end of a short piece of the same size cable as the power cable to the grounding point or to one of your batteries or battery bank. Run the other end of 4 ga cable to the mounting location of the amplifiers for connection to the amplifiers ground terminals and connect the ground cable to the GND ( ground terminal ). REM ( REMOTE ) Run a remote turn on cable from the switched 12V source . This may be a toggle switch, a relay, your source unit's remote trigger cables, or power antenna trigger cable. Connect the remote turn on cable to the REM ( remote ) terminal. DIGITAL MONOBLOCK INPUT CONNECTION HEADUNIT DIGITAL MONOBLOCK SPEAKER CONNECTION 4 ~ 1 ohms 8 ~ 2 ohms 8 ~ 2 ohms STRAPPABLE CONNECTION Strappable connection makes two of same amplifiers strapped to 2 ohm. Strappable connection makes the power double than their 1 ohm power. Please read the following connection and diagram carefully to make correct connection. INPUT CONNECTION ; Step 1. Connect the Master amplifier to the head-unit and set its output master / input slave switch to output master. Step 2. Set Slave amplifier output master / input slave switch to slave input. Step 3. Connect RCA cable from the master to slave amplifier as shown in the diagram. POWER & SPEAKER CONNECTION ; Step 1. Connect speaker cable ( ) on master amplifier to subwoofer ( ) Step 2. Connect speaker cable ( ) on slave amplifier to subwoofer ( ) Step 3. Connect speaker cable ( ) on master amplifier to speaker cable ( ) on slave amplifier Set switch on OUTPUT MASTER +12V SOURCE MASTER AMPLIFIER Wired Remote Control Fully adjusted signal is transferred from master to slave amp via Rca cable. Master amplifier controls all crossover and remote control over Slave amplifier SLAVE AMPLIFIER Set switch on INPUT SLAVE +12V SOURCE Remote turn on MASTER AMPLIFIER Ground 8 ~ 2 ohms Remote turn on BATTERY SLAVE AMPLIFIER 2 ohm 4 CHANNELS RCA INPUT CONNECTION HEADUNIT Input Ch3 Ch1 Ch1/2 GAIN Min HPF LPF X-Over Max 20Hz 5KHz 50Hz 500Hz HPF LP/BP Full Bass EQ Power 0dB 12dB 6dB Protect Remote Ch4 Ch2 Min Max 20Hz 5KHz 50Hz 500Hz HPF LP/BP Full Ch3/4 0dB 12dB 6dB 4 CHANNELS SPEAKER CONNECTIONS Mid Range Tweeter POWER Passive Ch1 Ch3 Bridged Bridged Ch2 Ch4 Mid Range Tweeter POWER Passive Ch1 Ch3 Bridged Bridged Ch2 Ch4 8 ~ 4 ohms 5 CHANNEL RCA INPUT CONNECTION HEADUNIT 5 CHANNEL SPEAKER CONNECTIONS 4 ~ 1 ohms 8 ~ 4 ohms 8 ~ 4 ohms Mid Range Tweeter 4 ~ 1 ohms Passive TROUBLE SHOOTINGS RP-series amplifiers have protection features to prevent any damages from misuse or faulty conditions. If RP-series amplifiers sense excessive heat, short circuited speakers DC, or voltage the protection indicator will light, and the system will be turned off. In order to check the problem, you should turn all levels down and all power off and carefully check the installation for wiring mistakes or short. If RP-series amplifiers shuts down due to excessive heat, They will be working later when it is cooled down Before removing your amplifier, refer to the list below and follow the suggested procedures. NO SOUND ( NO OUTPUT ) @ Please check all connections, cables' routing, short & volta ge. @ Please check the fuses , If they are blown, please replace with new one.. @ Please check whether speakers work well, you can test speakers by connecting to another amplifier PROTECTION @ Please check overload, overheat ( thermal ), short and voltage, DC offset. @ Minimum working impedance is 1 ohm for RP-350.1D, RP-800.1D, RP-1500.1D, RP-2000.1D, RP-3500.1D and RP-4500.1D. RP-75.4AB and RP-150.4AB is 2 ohm stereo or 4 ohm mono. RP-600.5 is 2 ohm stereo or 4 ohm mono for CH1 ~ CH4 and 1 ohm for CH5. @ If amplifiers are shut down due to heat, they will be on some minutes later after cooling down. Please make better airflow and no obstruction around amplifiers for thermal protection. @ RP-350.1D, RP-800.1D, RP-1500.1D, RP-2000.1D, RP-3500.1D, RP-4500.1D RP-75.4AB, RP-150.4AB & RP-600.5’s working voltage is 8.5 ~ 16Volts. @ When over 4V DC comes into amplifiers, then, they will be DC protected. Check whether amplifiers work after removing RCA-Input. If amplifiers work, then check DC by checking RCA-input . When DC is over 4V at input, try by replacing +12V source unit . DISTORTION & NOISE @ Readjust input level and check the speaker quality at another amplifier. Replace poor quality speakers with good quality ones. @ Check amplifiers and headunit’s ground contact. all grounds should be common. @ Check Rca Jack, then repalce with new one or reroute Rca Jack. @ Engine noise is caused by poor grounding of amplifiers, headunit, other components, battery or alternator, so please check all grounding connection. POOR BASS RESPONSE @ Please check speaker cables and reverse polarity.